fo=open('city.txt','rb')打开文件模式为()

【单选题】txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。txt ,图片,Word。 A. 1 B. txt ,图片，Word。 C. txt ,图片，Word。

Which is hailed as the first Fengshui ancient city of China?______ A: Pingyao City B: Shexian City C: Langzhong City D: Lijiang City

Where was the airport? A: to the west of the city B: to the north of the city C: to the northeast of the city D: to the east of the city

若要将当前盘目录下的文件A.TXT连接在文件B.TXT后面，应使用的命令为( )。 A: COPY TXT＞＞TXT B: MOVE TXT＞＞TXT C: PATH TXT＞＞TXT D: TYPE TXT＞＞TXT

下列文件名能表示扩展名为“txt”的所有文件的是（）。 A: ？.txt B: *.txt C: ＆.txt D: ％.txt

The New York City is called_______ A: the Big Apple B: the Empire city C: the Fun city D: the Windy city

What is the birthplace of the Jin Businessmen?____ A: Lijiang City B: Dali City C: Luoyang City D: Pingyao City

Which city isthe Chinese end of the Silk Road A: The old city of Luoyang. B: The old city of Xi'an C: The old city of Beijing D: The old city of Shanghai

想要在打开对话框中只显示后缀名为TXT和DOCX文件，那么应设定打开对话框的Filter 的值为（）? TXT|.TXT|DOCX|.DOCX|TXT|.TXT|.DOCX|TXT|DOCX|.TXT|.DOCX